Open AccessExperimental and numerical investigations of the impacts of separating board and anti-blocking mechanism on maize seeding
Author(s) -
Fang Huimin,
Niu Mengmeng,
Zhengbo Zhu,
Qingyi Zhang
Publication year - 2022
Publication title -
journal of agricultural engineering
Language(s) - English
Resource type - Journals
eISSN - 2239-6268
pISSN - 1974-7071
DOI - 10.4081/jae.2022.1273
Subject(s) - seeding , straw , tillage , blocking (statistics) , mechanism (biology) , agronomy , agricultural engineering , environmental science , mathematics , soil science , simulation , biology , computer science , engineering , physics , statistics , quantum mechanics
Maize seeding is greatly affected by improper seed placement and poor planter performance under a no-tillage mechanisation system. To overcome the issue, we explored the impact of separating board and anti-blocking mechanism (0, 1/4, 1/2, 2/3, 3/4, and 1 type) on maize seeding under different forward speeds (3, 5, 7 km/h) and rotational speeds (260, 400, 530, 740 rpm), where the performance metrics included the mass of straw coiled, seeding height, emergence rate, soil mound depth, straw movement, and straw clearance. The study results show that separating board helps to increase forward and side displacements of the straw, which avoids localized accumulation of straw around the antiblocking mechanism. The straw clearance rate of the anti-blocking mechanism with a separating board is greater than that without the separating board. Therefore, the 2/3 type anti-blocking mechanism with a separating board is recommended for maize seeding at a forward speed of 5 km/h and a rotational speed of 400 rpm.